NMSCT输尿管重建联合肾血流图诊断输尿管结石

NMSCT Ureteral Reconstruction Combined with Renal Hemodynamics in Diagnosis of Ureteral Calculi

目的:探讨非增强 MSCT(NMSCT)输尿管重建联合肾血流图诊断输尿管结石的价值。方法:采用输尿管重建技术,对 162 例初步诊断为输尿管结石的患者进行 NMSCT 扫描,同时行核素肾动态显像检查,结合患者的临床资料,回顾性分析 NMSCT 联合肾血流图的应用价值。结果:最终明确诊断输尿管结石 102 例,非输尿管结石 60 例,结石平均宽度为(7.6±2.8)mm。NMSCT 诊断输尿管结石的灵敏度和特异性分别为 88.2%、91.7%,肾血流图的灵敏度和特异性分别为 83.3%、88.3%,NMSCT 联合肾血流图诊断输尿管结石具有最高的灵敏度 92.2%和特异性 93.3%(表 1)。NMSCT 显示输尿管结石患者肾积水情况一定程度上能够提示肾血流图显示的泌尿系统梗阻严重程度(即肾功能)。结论:NMSCT 输尿管重建可以获得良好的尿路成像,能准确、清晰地显示输尿管结石。NMSCT 结合肾血流图可以完成输尿管结石的诊断及肾功能评价。对临床诊断及治疗具有重要价值,可以替代传统 CTU 检查。

Objective To evaluate the value of non-enhanced MSCT (NMSCT) ureteral reconstruction combined with renal hemodynamics in the diagnosis of ureteral calculi. Methods Patients (162 cases) with primary diagnosis of ureteral calculi were scanned with NMSCT and radionuclide renal dynamic imaging. The clinical data were analyzed retrospectively. Results Patients with ureteral calculi (102 cases) and of nonureteral calculi (60 cases) were diagnosed definitely. The average width of calculi was (7.6±2.8) mm. The sensitivity and specificity of NMSCT in the diagnosis of ureteral calculi were 88.2% and 91.7%, respectively. The sensitivity and specificity of renal hemodynamics were 83.3% and 88.3%, respectively. The highest sensitivity and specificity of NMSCT combined with renal hemodynamics in the diagnosis of ureteral calculi were 92.2% and 93.3%. NMSCT showed hydronephrosis in patients with ureteral calculi, and to some extent, could indicate the severity of urinary obstruction (renal function) shown by renal flow chart. Conclusion NMSCT ureteral reconstruction can obtain good urography and display ureteral calculi accurately and clearly. The diagnosis of ureteral calculi and evaluation of renal function can be accomplished by combining NMSCT with renal blood flow imaging. It has important value for clinical diagnosis and treatment, and can replace traditional CTU examination.